Abstract

Habrobracon hebetor (Say) is a cosmopolitan idiobiont braconid which parasitizes Pyralidae larvae, a pest of stored products, such as Ephestia kuehniella (Zeller). The objective was to describe the morphology of immature forms of H. hebetor and morphological changes throughout its development. Mated females of H. hebetor were individualized in Petri dishes containing larvae of E. kuehniella for parasitism for six hours. Then, the females were removed, leaving only the eggs placed on the host. The development was evaluated every 12 hours, recording all stages and changes until the emergence of adults. Using stereoscopic optical and scanning electron microscopy, photographs of immature individuals were taken. The results showed that this parasitoid completes its development between 10–12 days. There were stages overlaps during egg to adult development. Eggs are hymenopteriform, with a smooth surface. According to cephalic capsule and larval length measurements of H. hebetor, it was possible to determine four instars. In general, the instars are similar to each other, differing mainly in the size and shape of segments. Larvae present a gradual loss of transparency, becoming opaquer at each successive instar. Last instar larvae distanced from the host to form the cocoon and to pupate. This study was relevant for a better understanding of the physiological interactions between E. kuehniella and H. hebetor.

Addeddate

2024-09-10 02:18:34

Bhl_virtual_titleid

210919

Bhl_virtual_volume

v.60 (2017)

Call number

10_3897_jhr_60_20104

Call-number

10_3897_jhr_60_20104

Foldoutcount

0

Genre

article

Identifier

morphologicalch00pezz

Identifier-ark

ark:/13960/s2spr3d2xkd

Identifier-bib

10_3897_jhr_60_20104

Identifier-doi

10.3897/jhr.60.20104

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

0.9440

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

77

Page_number_module_version

1.0.5

Page_range

157-171

Pages

15

Pdf_degraded

invalid-jp2-headers

Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

Journal of Hymenoptera Research 60

Year

2017

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